EASY
Earn 100
Tobacco mosaic virus is a tubular filament of size
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Important Questions on Biological Classification
MEDIUM
Explain the structure of T-even bacteriophages.
EASY
Select the incorrect pair of viral diseases in plants.
EASY
Explain the structure of T-even bacteriophage.
MEDIUM
A pathogan which cannot be cultured in an artificial medium is:
MEDIUM
Which of the following statements related to viruses are incorrect?
I. Antibiotics can kill viruses
II. Viruses are inactive outside the cell
III. Genes involved in viral metabolism are located in the viral genome
IV. Phages can multiply by two alternative mechanism, the lytic and the lysogenic cycle
The incorrect combination is:
MEDIUM
Explain the structure of T-even phages.
MEDIUM
Which one of the following statements is correct about the tobacco mosaic virus?
EASY
Select the wrong statement.
EASY
Which one of the following statements is true about viruses?
EASY
Leaf extract from an infected plant was passed through a filter with a pore size of diameter. The infectious agent was detected in the filtrate. Which ONE of the following is the likely infectious agent?
MEDIUM
Describe the structure of T-even bacteriophage.
EASY
Identify the parts labelled in the given figure
MEDIUM
Define bacteriophage and write one example of it.
HARD
Explain the structure of TMV.
EASY
Which of the following statements is wrong for viroids?
HARD
Viroids differ from viruses in having:
EASY
Which of the following are the most suitable indicators of pollution in the environment?
MEDIUM
Assertion (A): Bacteriophages have the ability to replicate within bacterial cells.
Reason (R): Bacterial plasmids have very high copy numbers of their genome in the bacterial cells.
The correct option among the following is:
HARD
What is the order of events that occur in a bacteriophage lytic cycle?
EASY
Which of the following statements is incorrect?
